Description

Clorsulon-13C6 is a stable isotope-labeled analog of the anthelmintic drug Clorsulon, specifically enriched with six carbon-13 atoms. This compound serves as a critical internal standard for the precise quantification and pharmacokinetic analysis of Clorsulon in biological matrices using advanced mass spectrometry techniques. It is an essential tool for researchers and quality control laboratories in the pharmaceutical and veterinary medicine sectors, ensuring accurate and reliable analytical results for method development and regulatory compliance.

Application

• Primary use as an internal standard for the quantitative analysis of Clorsulon via LC-MS/MS and GC-MS.
• Method development and validation in pharmacokinetic and bioanalytical studies.
• Metabolite profiling and drug metabolism research in veterinary pharmacology.
• Quality control and assurance testing for Clorsulon-based pharmaceutical formulations.
• Use in stable isotope dilution assays (SIDA) to achieve high analytical precision.
• Supporting regulatory submissions and compliance with FDA and EMA guidelines for veterinary drugs.

Basic Information

Product Name	Clorsulon-13C6
CAS No.	1325559-24-7
Molecular Formula	C813C6H8Cl3N2O4S2
Molecular Weight	~ 389.7 (based on 13C6 enrichment)
Synonyms	1,3-Bis(4-chlorophenylsulfonyl)urea-13C6; 4,4'-Dichlorocarbanilide-3,3'-disulfonamide-13C6; Clorsulon (phenyl-13C6); [13C6]-Clorsulon; Clorsulon-13C6; Isotopically Labeled Clorsulon; Carbon-13 Labeled Clorsulon; Clorsulon Internal Standard
EINECS	Contact for details

Quality Control

Our Clorsulon-13C6 is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, NMR, and MS, to confirm isotopic enrichment, chemical purity, and identity. Certificates of Analysis (COA) are provided, detailing batch-specific results for isotopic purity, chemical purity, and residual solvents, ensuring compliance with research and development standards.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at controlled room temperature (15-25°C). Due to its hygroscopic nature, the container should be kept in a desiccated environment to prevent moisture absorption.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to structure
Identification (MS)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Isotopic Purity (13C)	≥ 99 atom % 13C
Isotopic Enrichment	≥ 99% 13C6
Water Content (KF)	≤ 1.0%
Residual Solvents (GC)	Complies with ICH limits

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.